From 9ef75eceef35f543836a594f8a1e5bd6d5da7075 Mon Sep 17 00:00:00 2001 From: David Wu Date: Thu, 8 Aug 2024 16:11:51 +0800 Subject: mb/google/nissa/var/riven: Add G2 touchscreen support This change adds the necessary configuration for the G2 Touchscreen(GTCH7503) device, connected to I2C bus 40. It includes settings for: * HID descriptor * Device description * IRQ configuration * Detection * Reset and enable GPIOs with their respective delays * Power resource handling * HID descriptor register offset BUG=b:350844195 TEST=emerge-nissa coreboot boot with G2 TS, make sure G2 TS is functional. Change-Id: If17367cd62eb69a1237efe4aa3ca1a0c9640ba4c Signed-off-by: David Wu Reviewed-on: https://review.coreboot.org/c/coreboot/+/83823 Reviewed-by: Eric Lai Reviewed-by: Subrata Banik Tested-by: build bot (Jenkins) --- src/mainboard/google/brya/variants/riven/overridetree.cb | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/brya/variants/riven/overridetree.cb b/src/mainboard/google/brya/variants/riven/overridetree.cb index 301d72a966..411277f8e6 100644 --- a/src/mainboard/google/brya/variants/riven/overridetree.cb +++ b/src/mainboard/google/brya/variants/riven/overridetree.cb @@ -255,6 +255,20 @@ chip soc/intel/alderlake register "hid_desc_reg_offset" = "0x01" device i2c 10 on end end + chip drivers/i2c/hid + register "generic.hid" = ""GTCH7503"" + register "generic.desc" = ""G2 Touchscreen"" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)" + register "generic.detect" = "1" + register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)" + register "generic.reset_delay_ms" = "120" + register "generic.reset_off_delay_ms" = "3" + register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" + register "generic.enable_delay_ms" = "12" + register "generic.has_power_resource" = "1" + register "hid_desc_reg_offset" = "0x01" + device i2c 40 on end + end chip drivers/generic/gpio_keys register "name" = ""PENH"" register "gpio" = "ACPI_GPIO_INPUT_ACTIVE_LOW(GPP_F13)" -- cgit v1.2.3